Chakraborty, A., Nanjundiah, R. S., Srinivasan, J.
A theory is proposed to determine the onset of the Indian Summer Monsoon (ISM) in an Atmospheric General Circulation Model (AGCM). The onset of ISM is delayed substantially in the absence of global...
Deepshikha, S., Satheesh, S. K., Srinivasan, J.
Long-range transport of continental dust makes these particles a significant constituent even at locations far from their sources. It is important to study the temporal variations in dust loading...
Deepshikha, S., Satheesh, S. K., Srinivasan, J.
Mineral dust constitutes the single largest contributor to continental aerosols. To accurately assess the impact of dust aerosols on climate, the spatial and temporal distribution of dust radiative...
Chakraborty, A., Satheesh, S. K., Nanjundiah, R. S., Srinivasan, J.
The impact of anthropogenic absorbing aerosols (such as soot) on the climate over the Indian region has been studied using the NCMRWF general circulation model. The absorbing aerosols increase...
A simple diagnostic model has been used to identify the parameters that induce large errors in the simulation of tropical precipitation in atmospheric General Circulation models (GCM). The GCM that...
Chakraborty, A., Nanjundiah, R. S., Srinivasan, J.
A theory is proposed to determine the onset of the Indian Summer Monsoon (ISM) in an Atmospheric General Circulation Model (AGCM). The onset of ISM is delayed substantially in the absence of global...
Deepshikha, S., Satheesh, S. K., Srinivasan, J.
Long-range transport of continental dust makes these particles a significant constituent even at locations far from their sources. It is important to study the temporal variations in dust loading...
Deepshikha, S., Satheesh, S. K., Srinivasan, J.
Mineral dust constitutes the single largest contributor to continental aerosols. To accurately assess the impact of dust aerosols on climate, the spatial and temporal distribution of dust radiative...
Chakraborty, A., Satheesh, S. K., Nanjundiah, R. S., Srinivasan, J.
The impact of anthropogenic absorbing aerosols (such as soot) on the climate over the Indian region has been studied using the NCMRWF general circulation model. The absorbing aerosols increase...
A simple diagnostic model has been used to identify the parameters that induce large errors in the simulation of tropical precipitation in atmospheric General Circulation models (GCM). The GCM that...
Assessment of second-generation MODIS aerosol retrieval (Collection 005) at Kanpur, India (2007)
Jethva, Hiren, Satheesh, SK, Srinivasan, J
The second-generation MODIS aerosol retrieval (Collection 005) from EOS- Aqua (2002–2005) was evaluated using ground-based AERONET measurements at Kanpur $(26.45 ^\circ N, 80.35^ \circ E)$ northern...
Berry, E., Kapur, N., Williams, L., Hodges, S., Watson, P., Smyth, G., ...
This case study describes the use of a wearable camera, SenseCam, which automatically captures several hundred images per day, to aid autobiographical memory in a patient, Mrs B, with severe memory...
What have we learned about the Indian monsoon from satellite data? (2007)
In the pre-satellite era, our understanding of the monsoon was based primarily on ground-based observations. The land–sea contrast in surface temperature was considered the primary mechanism that...
Latitudinal variation of aerosol optical depths from northern Arabian Sea to Antarctica (2007)
Vinoj, V, Anjan, Anjit, Sudhakar, M, Satheesh, SK, Srinivasan, J, Moorthy, Krishna K
Measurements of the spectral aerosol optical depths (AODs) were made over the Arabian Sea, Indian Ocean, Southern Ocean, and Antarctica during a trans-continental cruise experiment conducted during...
Moorthy, Krishna K, Babu, Suresh S, Satheesh, SK, Srinivasan, J, Dutt, CBS
Mineral dust is the single largest contributor of natural aerosols over land. Dust aerosols exhibit high variability in their radiative effects because their composition varies locally. This arises...
Improving the C. elegans genome annotation using machine learning (2007)
Raetsch, Gunnar, Sonnenburg, Sören, Srinivasan, J, Witte, H, Müller, Klaus-Robert, Sommer, R, ...
For modern biology, precise genome annotations are of prime importance, as they allow the accurate definition of genic regions. We employ state-of-the-art machine learning methods to assay and...
Vidyunmala, V, Nanjundiah, RS, Srinivasan, J
The factors that control the strength of the ITCZ (Inter Tropical Convergence Zone) in an aquaplanet GCM (General Circulation Model) have been investigated. The strength of the equatorial ITCZ was...
Atmospheric warming due to dust absorption over Afro-Asian regions (2007)
Satheesh, SK, Dutt, CBS, Srinivasan, J, Rao, UR
There have been several investigations to understand the impact of Saharan dust layer on radiative heat balance. However, there are few studies on the impact of dust over Asian regions which is...
Vidyunmala, V, Nanjundiah, RS, Srinivasan, J
The factors that control the strength of the ITCZ (Inter Tropical Convergence Zone) in an aquaplanet GCM (General Circulation Model) have been investigated. The strength of the equatorial ITCZ was...
Latitudinal variation of aerosol optical depths from northern Arabian Sea to Antarctica (2007)
Vinoj, V, Anjan, Anjit, Sudhakar, M, Satheesh, SK, Srinivasan, J, Moorthy, Krishna K
Measurements of the spectral aerosol optical depths (AODs) were made over the Arabian Sea, Indian Ocean, Southern Ocean, and Antarctica during a trans-continental cruise experiment conducted during...
Improving the Caenorhabditis elegans genome annotation using machine learning (2007)
Rätsch, G., Sonnenburg, S., Srinivasan, J., Witte, H., ...
For modern biology, precise genome annotations are of prime importance, as they allow the accurate definition of genic regions. We employ state-of-the-art machine learning methods to assay and...
Moorthy, Krishna K, Babu, Suresh S, Satheesh, SK, Srinivasan, J, Dutt, CBS
Mineral dust is the single largest contributor of natural aerosols over land. Dust aerosols exhibit high variability in their radiative effects because their composition varies locally. This arises...
Assessment of second-generation MODIS aerosol retrieval (Collection 005) at Kanpur, India (2007)
Jethva, Hiren, Satheesh, SK, Srinivasan, J
The second-generation MODIS aerosol retrieval (Collection 005) from EOS- Aqua (2002–2005) was evaluated using ground-based AERONET measurements at Kanpur $(26.45 ^\circ N, 80.35^ \circ E)$ northern...
Atmospheric warming due to dust absorption over Afro-Asian regions (2007)
Satheesh, SK, Dutt, CBS, Srinivasan, J, Rao, UR
There have been several investigations to understand the impact of Saharan dust layer on radiative heat balance. However, there are few studies on the impact of dust over Asian regions which is...
What have we learned about the Indian monsoon from satellite data? (2007)
In the pre-satellite era, our understanding of the monsoon was based primarily on ground-based observations. The land–sea contrast in surface temperature was considered the primary mechanism that...
Chakraborty, A, Nanjundiah, RS, Srinivasan, J
A theory is proposed to determine the onset of the Indian Summer Monsoon (ISM) in an Atmospheric General Circulation Model (AGCM). The onset of ISM is delayed substantially in the absence of global...
New Directions: How representative are aerosol radiative impact assessments? (2006)
Satheesh, SK, Srinivasan, J, Vinoj, V, Chandra, S
The radiative impact of aerosols is one of the largest sources of uncertainty in estimating anthropogenic climate perturbations. Estimation of the aerosol radiative effects is much more complicated...
Satheesh, SK, Srinivasan, J, Moorthy, KK
The Bay of Bengal (BoB) region is a small oceanic region surrounded by landmasses with distinct natural and anthropogenic aerosol sources. Despite this and the significant influence of BoB on the...
A Method to Estimate Aerosol Radiative Forcing from Spectral Optical Depths (2006)
Radiative forcing of aerosols is much more difficult to estimate than that of well-mixed gases due to the large spatial variability of aerosols and the lack of an adequate database on their radiative...
Satheesh, SK, Srinivasan, J, Moorthy, KK
The Bay of Bengal (BoB) region is a small oceanic region surrounded by landmasses with distinct natural and anthropogenic aerosol sources. Despite this and the significant influence of BoB on the...
A Method to Estimate Aerosol Radiative Forcing from Spectral Optical Depths (2006)
Radiative forcing of aerosols is much more difficult to estimate than that of well-mixed gases due to the large spatial variability of aerosols and the lack of an adequate database on their radiative...
New Directions: How representative are aerosol radiative impact assessments? (2006)
Satheesh, SK, Srinivasan, J, Vinoj, V, Chandra, S
The radiative impact of aerosols is one of the largest sources of uncertainty in estimating anthropogenic climate perturbations. Estimation of the aerosol radiative effects is much more complicated...
Chakraborty, A, Nanjundiah, RS, Srinivasan, J
A theory is proposed to determine the onset of the Indian Summer Monsoon (ISM) in an Atmospheric General Circulation Model (AGCM). The onset of ISM is delayed substantially in the absence of global...
Seasonal variability of aerosols over the Indo-Gangetic basin (2005)
Jethva, Hiren, Satheesh, SK, Srinivasan, J
We examine the spatio-temporal characteristics of aerosols in the recent years (2000-2003) over the Indian region with special emphasis on the Indo-Gangetic basin (northern India) using data from...
Nanjundiah, Ravi S, Vidyunmala, V, Srinivasan, J
The Community Climate System Model (CCSM2) provides a realistic simulation of seasonal cycle of rainfall over India. The Community Atmosphere Model (CAM2), which is the atmospheric component of...
Mannucci, Anthony J., Hajj, G. A., Iijima, B. A., Komjathy, A., Meehan, T., Pi, X. Q., ...
We will discuss a new data assimilation model of ionosphere, the Global Assimilative Ionosphere Model (GAIM), capable of integrating measurements from GPS and other sensors with a physics-based...
A method to infer short wave absorption due to aerosols using satellite remote sensing (2005)
Retrieval of aerosol absorption using satellite remote sensing is an important but difficult problem. Earlier studies have demonstrated that the effect of aerosol absorption is small over surfaces...
Thapliyal, PK, Pal, PK, Narayanan, MS, Srinivasan, J
Soil moisture is a very important boundary parameter in numerical weather prediction at different spatial and temporal scales. Satellite-based microwave radiometric observations are considered to be...
A method to infer short wave absorption due to aerosols using satellite remote sensing (2005)
Retrieval of aerosol absorption using satellite remote sensing is an important but difficult problem. Earlier studies have demonstrated that the effect of aerosol absorption is small over surfaces...
Seasonal variability of aerosols over the Indo-Gangetic basin (2005)
Jethva, Hiren, Satheesh, SK, Srinivasan, J
We examine the spatio-temporal characteristics of aerosols in the recent years (2000-2003) over the Indian region with special emphasis on the Indo-Gangetic basin (northern India) using data from...
Nanjundiah, Ravi S, Vidyunmala, V, Srinivasan, J
The Community Climate System Model (CCSM2) provides a realistic simulation of seasonal cycle of rainfall over India. The Community Atmosphere Model (CAM2), which is the atmospheric component of...
Nanjundiah, Ravi S, Vidyunmala, V, Srinivasan, J
The Tropical Biennial Oscillation (TBO) in coupled GCM simulations over the Indo-Pacific region in IPCC-AR4 scenarios of 280 (PI) and 720 (FS) ppm of $CO_2$ (both stable) are investigated. In many...
Thapliyal, PK, Pal, PK, Narayanan, MS, Srinivasan, J
Soil moisture is a very important boundary parameter in numerical weather prediction at different spatial and temporal scales. Satellite-based microwave radiometric observations are considered to be...
Deepshikha, S, Satheesh, SK, Srinivasan, J
The investigations as part of ACE-Asia have demonstrated that dust we observe may not be just dust, but it may be dust mixed with other aerosols. Consequently dust radiative forcing (even its sign)...
Nanjundiah, Ravi S, Vidyunmala, V, Srinivasan, J
The Tropical Biennial Oscillation (TBO) in coupled GCM simulations over the Indo-Pacific region in IPCC-AR4 scenarios of 280 (PI) and 720 (FS) ppm of $CO_2$ (both stable) are investigated. In many...
Deepshikha, S, Satheesh, SK, Srinivasan, J
The investigations as part of ACE-Asia have demonstrated that dust we observe may not be just dust, but it may be dust mixed with other aerosols. Consequently dust radiative forcing (even its sign)...
In this paper, we have compared the relative humidity (RH) retrieved from 183 GHz channel brightness temperature (BT) of AMSU-B (Advanced Microwave Sounding Unit-B) with those obtained from...
Flexible, Precision On-Orbit Navigation and Autonomous Experiment Management Using GPS (2004)
Duncan, C., Lichten, S., Haines, B., Meehan, T., Munson, T., Muellerschoen, R., ...
A Demonstration of Unified TDRS/GPS Tracking and Orbit Determination (2004)
Haines, B., Lichten, S., Srinivasan, J., Young, L.
An experimental system, called GPS-like tracking, was used to track TDRS and GPS satellites simultaneously from a small (3 station) ground network. Comparison with the operational precise orbit...
Chandra, Shekhar, Satheesh, SK, Srinivasan, J
In order to understand the response of the Earth-atmosphere system to anthropogenic aerosol forcing, it is essential to know the relative impact of various aerosol species on the radiative budget....
A Dedicated Constellation For Global GPS Limb Sounding (2004)
Leroy, S. S., Srinivasan, J., Yunck, T. P., Kursinski, E. R., Hajj, G. A., Meehan, T. K.
microGPS: On-orbit Demonstration of a New Approach to GPS to Space Applications (2004)
Srinivasan, J., Bar-Sever, Y., Bertiger, W., Lichten, S., Muellerschoen, R., Munson, T., ...
In February 1998 Student Nitric Oxide Explorer (SNOE) was successfully launched and began scientific observations.
"GPS On A Chip" -- An Advanced GPS Receiver for Spacecraft (2004)
Meehan, T., Duncan, C., Dunn, C., Spitzmesser, D., Srinivasan, J., Munson, T., ...
Three years ago, facing a growing list of stringent navigation science requirements for future low-cost Earth missions, NASA began a program to develop a new high performance spaceborne GPS receiver.
Mars Comm/Nav MicroSat Network (2004)
Cesarone, R., Hastrup, R., Srinivasan, J., Morabito, D.
A recent Mars Exploration Program Architecture Definition Study, conducted by NASA with strong international participation, recommands establishment of a low cost in-situ communications and...
Mars Network for Enabling Low-Cost Missions (2004)
Hastrup, R., Bell, D., Cesarone, R., Edwards, C., Quinn, J., Rosell, S., ...
Srinivasan, J., Farrington, A., Gray, A.
They present an overview of long-life reconfigurable processor technologies and of a specific architecture for implementing a software reconfigurable (software-defined) network processor for space...
Mars Network: A Telecommunications and Navigation Network for Future Mars Exploration (2004)
Edwards, C., Adams, J., Bar-Sever, Y., Bell, D., Cesarone, R., Ely, T., ...
Bertiger, W., Bar-Sever, Y., Desai, S., Duncan, C., Haines, B., Kuang, D., ...
The BlackJack family of GPS receivers has been developed at JPL to satisfy NASA's requirements for high-accuracy, dual-frequency, Y-codeless GPS receivers for NASA's Earth science missions. In this...
Autonomous formation flying sensor for the Star Light Mission (2004)
Aung, M., Purcell, G., Tien, J., Young, L., Srinivasan, J., Ciminera, M. A., ...
The StarLight Mission, an element of NASA's Origins Program, was designed for first-time demonstration of two technologies: formation flying optical interferometry between spacecraft and autonomous...
Space applications of the NASA global differential GPS system (2004)
Bar-Sever, Y., Bell, B., Dorsey, A., Srinivasan, J.
In this article we describe the developments in the third and last year of this effort, and discuss the current status of the system and its potential future evolution.
AppaDB: an AcedB database for the nematode satellite organism Pristionchus pacificus (2004)
Srinivasan,J., Otto,Georg, Kahlow,Uli, Geisler,Robert, Sommer,Ralf
Pristionchus pacificus is a free-living nematode of the Diplogastridae family and was recently developed as a satellite system in evolutionary developmental biology. AppaDB, a P.pacificus database,...
Chandra, Shekhar, Satheesh, SK, Srinivasan, J
In order to understand the response of the Earth-atmosphere system to anthropogenic aerosol forcing, it is essential to know the relative impact of various aerosol species on the radiative budget....
In this paper, we have compared the relative humidity (RH) retrieved from 183 GHz channel brightness temperature (BT) of AMSU-B (Advanced Microwave Sounding Unit-B) with those obtained from...
AppaDB: an AcedB database for the nematode satellite organism Pristionchus pacificus (2004)
Srinivasan, J., Otto, Georg, Kahlow, Uli, Geisler, Robert, Sommer, Ralf
Pristionchus pacificus is a free-living nematode of the Diplogastridae family and was recently developed as a satellite system in evolutionary developmental biology. AppaDB, a P.pacificus database,...
Role of Asian and African orography in Indian summer monsoon (2002)
Chakraborty, A, Nanjundiah, RS, Srinivasan, J
Role of Asian and African orography in the Indian summer monsoon has been investigated using a general circulation model. Orography of Asian region west of 80°E appears to have more impact on the...